^ 



DEC 3 1S90 



Vol. IX. 



MARCH-APRIL. 



Nos. 6, 7. 



?^^2. 



TRANSACTIONS 



New York Academy of Sciences 



1889-1890. 



Edited by 

 THE RECORDING SECRETARY, 



Assisted by 

 The Publication Committee. 



PUBLISHED FOR THE ACADEMY, 

 In Eight Monthly Numbers, from October to M.ny, inclusive. 



